Pull pv_ops-xen into release branch

8 files changed, 62 insertions, 6 deletions

diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index 87fea11aecb7..55e6ca8eebda 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -112,5 +112,23 @@ clean-files += $(objtree)/include/asm-ia64/nr-irqs.h
 ASM_PARAVIRT_OBJS = ivt.o entry.o
 define paravirtualized_native
 AFLAGS_$(1) += -D__IA64_ASM_PARAVIRTUALIZED_NATIVE
+AFLAGS_pvchk-sed-$(1) += -D__IA64_ASM_PARAVIRTUALIZED_PVCHECK
+extra-y += pvchk-$(1)
 endef
 $(foreach obj,$(ASM_PARAVIRT_OBJS),$(eval $(call paravirtualized_native,$(obj))))
+
+#
+# Checker for paravirtualizations of privileged operations.
+#
+quiet_cmd_pv_check_sed = PVCHK   $@
+define cmd_pv_check_sed
+        sed -f $(srctree)/arch/$(SRCARCH)/scripts/pvcheck.sed $< > $@
+endef
+
+$(obj)/pvchk-sed-%.s: $(src)/%.S $(srctree)/arch/$(SRCARCH)/scripts/pvcheck.sed FORCE
+        $(call if_changed_dep,as_s_S)
+$(obj)/pvchk-%.s: $(obj)/pvchk-sed-%.s FORCE
+        $(call if_changed,pv_check_sed)
+$(obj)/pvchk-%.o: $(obj)/pvchk-%.s FORCE
+        $(call if_changed,as_o_S)
+.PRECIOUS: $(obj)/pvchk-sed-%.s $(obj)/pvchk-%.s $(obj)/pvchk-%.o
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 5d1eb7ee2bf6..00936491933e 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -52,6 +52,7 @@
 #include <asm/numa.h>
 #include <asm/sal.h>
 #include <asm/cyclone.h>
+#include <asm/xen/hypervisor.h>
 
 #define BAD_MADT_ENTRY(entry, end) (                                        \
                 (!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
@@ -121,6 +122,8 @@ acpi_get_sysname(void)
                         return "uv";
                 else
                         return "sn2";
+        } else if (xen_pv_domain() && !strcmp(hdr->oem_id, "XEN")) {
+                return "xen";
         }
 
         return "dig";
@@ -137,6 +140,8 @@ acpi_get_sysname(void)
         return "uv";
 # elif defined (CONFIG_IA64_DIG)
         return "dig";
+# elif defined (CONFIG_IA64_XEN_GUEST)
+        return "xen";
 # else
 #       error Unknown platform.  Fix acpi.c.
 # endif
diff --git a/arch/ia64/kernel/asm-offsets.c b/arch/ia64/kernel/asm-offsets.c
index 94c44b1ccfd0..742dbb1d5a4f 100644
--- a/arch/ia64/kernel/asm-offsets.c
+++ b/arch/ia64/kernel/asm-offsets.c
@@ -16,6 +16,9 @@
 #include <asm/sigcontext.h>
 #include <asm/mca.h>
 
+#include <asm/xen/interface.h>
+#include <asm/xen/hypervisor.h>
+
 #include "../kernel/sigframe.h"
 #include "../kernel/fsyscall_gtod_data.h"
 
@@ -286,4 +289,32 @@ void foo(void)
                 offsetof (struct itc_jitter_data_t, itc_jitter));
         DEFINE(IA64_ITC_LASTCYCLE_OFFSET,
                 offsetof (struct itc_jitter_data_t, itc_lastcycle));
+
+#ifdef CONFIG_XEN
+        BLANK();
+
+        DEFINE(XEN_NATIVE_ASM, XEN_NATIVE);
+        DEFINE(XEN_PV_DOMAIN_ASM, XEN_PV_DOMAIN);
+
+#define DEFINE_MAPPED_REG_OFS(sym, field) \
+        DEFINE(sym, (XMAPPEDREGS_OFS + offsetof(struct mapped_regs, field)))
+
+        DEFINE_MAPPED_REG_OFS(XSI_PSR_I_ADDR_OFS, interrupt_mask_addr);
+        DEFINE_MAPPED_REG_OFS(XSI_IPSR_OFS, ipsr);
+        DEFINE_MAPPED_REG_OFS(XSI_IIP_OFS, iip);
+        DEFINE_MAPPED_REG_OFS(XSI_IFS_OFS, ifs);
+        DEFINE_MAPPED_REG_OFS(XSI_PRECOVER_IFS_OFS, precover_ifs);
+        DEFINE_MAPPED_REG_OFS(XSI_ISR_OFS, isr);
+        DEFINE_MAPPED_REG_OFS(XSI_IFA_OFS, ifa);
+        DEFINE_MAPPED_REG_OFS(XSI_IIPA_OFS, iipa);
+        DEFINE_MAPPED_REG_OFS(XSI_IIM_OFS, iim);
+        DEFINE_MAPPED_REG_OFS(XSI_IHA_OFS, iha);
+        DEFINE_MAPPED_REG_OFS(XSI_ITIR_OFS, itir);
+        DEFINE_MAPPED_REG_OFS(XSI_PSR_IC_OFS, interrupt_collection_enabled);
+        DEFINE_MAPPED_REG_OFS(XSI_BANKNUM_OFS, banknum);
+        DEFINE_MAPPED_REG_OFS(XSI_BANK0_R16_OFS, bank0_regs[0]);
+        DEFINE_MAPPED_REG_OFS(XSI_BANK1_R16_OFS, bank1_regs[0]);
+        DEFINE_MAPPED_REG_OFS(XSI_B0NATS_OFS, vbnat);
+        DEFINE_MAPPED_REG_OFS(XSI_B1NATS_OFS, vnat);
+#endif /* CONFIG_XEN */
 }
diff --git a/arch/ia64/kernel/ivt.S b/arch/ia64/kernel/ivt.S
index 416a952b19bd..f675d8e33853 100644
--- a/arch/ia64/kernel/ivt.S
+++ b/arch/ia64/kernel/ivt.S
@@ -580,7 +580,7 @@ ENTRY(dirty_bit)
         mov b0=r29                              // restore b0
         ;;
         st8 [r17]=r18                           // store back updated PTE
-        itc.d r18                               // install updated PTE
+        ITC_D(p0, r18, r16)                     // install updated PTE
 #endif
         mov pr=r31,-1                           // restore pr
         RFI
@@ -646,7 +646,7 @@ ENTRY(iaccess_bit)
         mov b0=r29                              // restore b0
         ;;
         st8 [r17]=r18                           // store back updated PTE
-        itc.i r18                               // install updated PTE
+        ITC_I(p0, r18, r16)                     // install updated PTE
 #endif /* !CONFIG_SMP */
         mov pr=r31,-1
         RFI
@@ -698,7 +698,7 @@ ENTRY(daccess_bit)
         or r18=_PAGE_A,r18                      // set the accessed bit
         ;;
         st8 [r17]=r18                           // store back updated PTE
-        itc.d r18                               // install updated PTE
+        ITC_D(p0, r18, r16)                     // install updated PTE
 #endif
         mov b0=r29                              // restore b0
         mov pr=r31,-1
diff --git a/arch/ia64/kernel/nr-irqs.c b/arch/ia64/kernel/nr-irqs.c
index 8273afc32db8..ee564575148e 100644
--- a/arch/ia64/kernel/nr-irqs.c
+++ b/arch/ia64/kernel/nr-irqs.c
@@ -10,6 +10,7 @@
 #include <linux/kbuild.h>
 #include <linux/threads.h>
 #include <asm/native/irq.h>
+#include <asm/xen/irq.h>
 
 void foo(void)
 {
diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c
index afaf5b9a2cf0..de35d8e8b7d2 100644
--- a/arch/ia64/kernel/paravirt.c
+++ b/arch/ia64/kernel/paravirt.c
@@ -332,7 +332,7 @@ ia64_native_iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
 
 struct pv_iosapic_ops pv_iosapic_ops = {
         .pcat_compat_init = ia64_native_iosapic_pcat_compat_init,
-        .get_irq_chip = ia64_native_iosapic_get_irq_chip,
+        .__get_irq_chip = ia64_native_iosapic_get_irq_chip,
 
         .__read = ia64_native_iosapic_read,
         .__write = ia64_native_iosapic_write,
diff --git a/arch/ia64/kernel/paravirt_inst.h b/arch/ia64/kernel/paravirt_inst.h
index 5cad6fb2ed19..64d6d810c64b 100644
--- a/arch/ia64/kernel/paravirt_inst.h
+++ b/arch/ia64/kernel/paravirt_inst.h
@@ -20,7 +20,9 @@
  *
  */
 
-#ifdef __IA64_ASM_PARAVIRTUALIZED_XEN
+#ifdef __IA64_ASM_PARAVIRTUALIZED_PVCHECK
+#include <asm/native/pvchk_inst.h>
+#elif defined(__IA64_ASM_PARAVIRTUALIZED_XEN)
 #include <asm/xen/inst.h>
 #include <asm/xen/minstate.h>
 #else
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 341a0319a5ba..c57162705147 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -242,7 +242,6 @@ default_idle (void)
 /* We don't actually take CPU down, just spin without interrupts. */
 static inline void play_dead(void)
 {
-        extern void ia64_cpu_local_tick (void);
         unsigned int this_cpu = smp_processor_id();
 
         /* Ack it */